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Study flow diagram
Figuras y tablas -
Figure 1

Study flow diagram

Table 1. Definition of frequent episodes of respiratory tract infection

Age (years)

Recurrent URTI (episodes per year)

Recurrent LRTI (episodes per year)

Recurrent tracheitis or bronchitis

Recurrent pneumonia

Birth to 2 years of age

7

3

2

2 to 5 years of age (> 2 years and < 5 years)

6

2

2

5 to 14 years of age (> 5 years and < 14 years)

5

2

2

Abbreviations: LRTI ‐ lower respiratory tract infection; URTI ‐ upper respiratory tract infection

Figuras y tablas -
Table 1. Definition of frequent episodes of respiratory tract infection